Siemens SINUMERIK 840Di sl Programming Manual page 226

Path Action
5.9 Internal preprocessing stop
Example
Machining should be stopped in block N50.
N40 POSA[X]=100
N50 IF $AA_IM[X]==R100 GOTOF
MARKE1
N60 G0 Y100
N70 WAITP(X)
N80 LABEL1:
N40 X...
226
;Access to machine status data ($A...), the ;control generates
an internal preprocessing stop.
;Feed and spindle speed remain effective
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals